Patents by Inventor Sung-Eun Cha
Sung-Eun Cha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240125442Abstract: A vehicle light includes: a light lens having a base panel made of a transparent plastic material, an outer paint layer disposed on an outer surface of the base panel, and an inner paint layer disposed on an inner surface of the base panel and including a light-transmitting hole formed therein; and a light source installed to be spaced apart from the light lens, in which light from the light source is transmitted out of the light lens through the light-transmitting hole and the base panel.Type: ApplicationFiled: July 25, 2023Publication date: April 18, 2024Applicants: Hyundai Motor Company, Kia Corporation, SL CorporationInventors: Sung Ho PARK, Dong Eun CHA, Dong Woo KIM, Young Ho JO, Tae Seok SEO
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Patent number: 10788692Abstract: An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.Type: GrantFiled: November 20, 2009Date of Patent: September 29, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kee-Han Uh, Hyung-Guel Kim, Sang-Woo Kim, Seung-Kyu Lee, Bo-Young An, Won-Sang Park, Jae-Hyun Kim, Hae-Young Yun, Jae-Young Lee, Poundaleva Irina, Sung-Eun Cha, Young-Joo Chang, Jae-Ik Lim, Ki-Hun Jeong
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Patent number: 8130349Abstract: A substrate for a display apparatus includes a plate, a switching element, an insulating layer, and a partition wall. The plate has a reflection region on which a light that is provided from an exterior to the substrate is reflected and a transmission region through which a light generated from a backlight assembly passes. The switching element is on the plate. The insulating layer is on the plate having the switching element. The transmission region of the insulating layer is recessed when compared to the reflection region of the insulating layer. The insulating layer has a contact hole through which a first electrode of the switching element is partially exposed. The partition wall divides the transmission region into a plurality of transmission portions. Advantageously, an image display quality of the display apparatus is improved, and manufacturing cost is decreased.Type: GrantFiled: February 2, 2010Date of Patent: March 6, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim, Jae-Hyun Kim
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Patent number: 7956962Abstract: In a transflective-type display panel and a display apparatus having the transflective-type display panel, the transflective-type display panel includes a first display substrate, a second display substrate and a liquid crystal layer. The first display substrate includes a first substrate and a common electrode arranged on the first substrate. The second display substrate includes a second substrate having a main pixel area where a plurality of sub pixel areas are formed, a plurality of transmission electrodes formed in the sub pixel areas and coupled with each other, and a reflection electrode arranged in at least one sub pixel area. Thus, the transflective-type display panel improves a viewing angle and a display quality thereof and improves productivity.Type: GrantFiled: November 16, 2005Date of Patent: June 7, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Young Lee, Kee-Han Uh, Won-Sang Park, Hae-Young Yun, Jae-Hyun Kim, Young-Joo Chang, Irina Poundaleva, Sung-Eun Cha, Seung-Kyu Lee, Jae-Ik Lim, Sang-Woo Kim
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Patent number: 7898618Abstract: In an LCD apparatus, a reflecting plate, which is formed on a pixel electrode connected to a switching device formed on an array substrate, defines a first area from which a natural light is reflected and a second area through which an artificial light is transmitted. The reflecting plate is partially extended to and overlapped with the second area depending upon a rubbing direction of the array substrate. Thus, the reflective-transmissive type LCD apparatus may prevent occurrence of the afterimage, and may enhance a contrast ratio thereof when operated in a transmissive mode.Type: GrantFiled: March 12, 2004Date of Patent: March 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hyun Kim, Sang-Woo Kim, Jae-Young Lee, Yong-Kyu Jang, Sung-Eun Cha
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Patent number: 7834965Abstract: The present invention discloses a thin film transistor array substrate, a method for manufacturing the array substrate, and a liquid crystal display. The present invention further discloses a liquid crystal display having a reflective area and a transmissive area, which the image quality can be enhanced with. The present invention also discloses a liquid crystal display that has a liquid crystal layer whose thickness is depends on position.Type: GrantFiled: January 11, 2008Date of Patent: November 16, 2010Assignee: Samsung Electronics, Co., Ltd.Inventors: Jae-Hyun Kim, Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim
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Patent number: 7746434Abstract: An LCD apparatus including a first member, a second member, a liquid crystal layer and an optical film assembly is presented. A phase delay of the optical film assembly is about ??. In a normally white mode, the phase delay of the liquid crystal layer is about (?/2)+? when no voltage is applied and about “?” when voltage is applied. In a normally black mode, the phase delay of the liquid crystal layer is about “?” when no voltage is applied, and about (?/2)+? when voltage is applied. The phase delay between the liquid crystal layer when voltage is applied and the liquid crystal layer when voltage is not applied is about ?/2. “?” is a positive number. By manipulating the value of ?, power consumption can be reduced. For example, the apparatus can be driven with a voltage below 2.5 V.Type: GrantFiled: December 13, 2004Date of Patent: June 29, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim, Jae-Hyun Kim
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Publication number: 20100157236Abstract: A reflective-transmissive liquid crystal display (LCD) device with an improved display quality is achieved by forming a reflective area and a transmissive area having a cell gap greater than greater than that of the reflective area. A liquid crystal layer is disposed in a liquid crystal cell between the first and second substrates. The liquid crystal molecules are normally aligned at an angle equal to greater than about 45° with respect to a line parallel to the first substrate. The LCD device operates in a normally black mode.Type: ApplicationFiled: March 12, 2010Publication date: June 24, 2010Inventors: YONG-KYU JANG, WON-SANG PARK, JAE-HYUN KIM, SANG-WOO KIM, SUNG-EUN CHA, JAE-YOUNG LEE
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Publication number: 20100134734Abstract: A substrate for a display apparatus includes a plate, a switching element, an insulating layer, and a partition wall. The plate has a reflection region on which a light that is provided from an exterior to the substrate is reflected and a transmission region through which a light generated from a backlight assembly passes. The switching element is on the plate. The insulating layer is on the plate having the switching element. The transmission region of the insulating layer is recessed when compared to the reflection region of the insulating layer. The insulating layer has a contact hole through which a first electrode of the switching element is partially exposed. The partition wall divides the transmission region into a plurality of transmission portions. Advantageously, an image display quality of the display apparatus is improved, and manufacturing cost is decreased.Type: ApplicationFiled: February 2, 2010Publication date: June 3, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Hyun Kim, Won-Sang Park, Sang-Woo Kim, Sung-Eun Cha, Jae-Young Lee, Jae-Ik Lim
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Patent number: 7728616Abstract: Disclosed is a picture quality testing apparatus and method of a liquid crystal display which can measure at least any one of gray inversion and color shift. An apparatus for testing the picture quality of a liquid crystal display includes a liquid crystal display for displaying a test pattern, an image pickup device for photographing the test pattern of the liquid crystal display, a measurer for measuring the transmittance of the test pattern photographed by the image pickup device, and a rotating means for rotating at least one of the liquid crystal display and the image pickup device while the image pickup device photographs the test pattern.Type: GrantFiled: April 27, 2006Date of Patent: June 1, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Won Sang Park, Kee Han Uh, Hae Young Yun, Jae Ik Lim, Seung Kyu Lee, Sung Eun Cha, Young Joo Chang, Jae Young Lee, Sang Woo Kim
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Patent number: 7719641Abstract: An array substrate includes a plate, a switching element, an insulating layer and a pixel electrode. The plate includes a pixel region, and the switching element is disposed on the plate. The insulating layer is disposed on the plate to include an opening for a multi-domain disposed in the pixel region and a contact hole. An electrode of the switching element is partially exposed through the contact hole. The pixel electrode is disposed on the insulating layer corresponding to the pixel region, an inner surface of the opening for the multi-domain and an inner surface of the contact hole so that the pixel electrode is electrically connected to the electrode of the switching element. Therefore, the viewing angle and the image display quality of the LCD apparatus are improved, and a manufacturing process is simplified.Type: GrantFiled: March 31, 2009Date of Patent: May 18, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hyun Kim, Sung-Eun Cha, Sang-Woo Kim, Won-Sang Park, Jae-Young Lee, Jae-Ik Lim
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Patent number: 7688405Abstract: A reflective-transmissive liquid crystal display (LCD) device with an improved display quality is achieved by forming a reflective area and a transmissive area having a cell gap greater than greater than that of the reflective area. A liquid crystal layer is disposed in a liquid crystal cell between the first and second substrates. The liquid crystal molecules are normally aligned at an angle equal to greater than about 45° with respect to a line parallel to the first substrate. The LCD device operates in a normally black mode.Type: GrantFiled: July 9, 2004Date of Patent: March 30, 2010Assignee: Samsung Electronics Co., LtdInventors: Yong-Kyu Jang, Won-Sang Park, Jae-Hyun Kim, Sang-Woo Kim, Sung-Eun Cha, Jae-Young Lee
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Patent number: 7688410Abstract: A display panel according to one aspect of the present invention includes a lower substrate, an upper substrate and a liquid crystal layer. The lower substrate includes a plate, a switching element, an insulating layer, a transmission electrode and a protrusion. The plate has a transmission region through which a light may pass. The switching element is formed on the plate. The insulating layer is formed on the plate to cover the switching element. The transmission electrode is electrically connected to the switching element. The transmission electrode is formed in the transmission region. The protrusion divides the transmission region into a plurality of transmission portions. The upper substrate faces the lower substrate. The liquid crystal layer is disposed between the lower substrate and the upper substrate. Advantageously, an image display quality of the display apparatus is improved, and manufacturing cost is decreased.Type: GrantFiled: October 12, 2007Date of Patent: March 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hyun Kim, Won-Sang Park, Sang-Woo Kim, Sung-Eun Cha, Jae-Young Lee, Jae-Ik Lim
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Publication number: 20100066655Abstract: An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.Type: ApplicationFiled: November 20, 2009Publication date: March 18, 2010Inventors: Kee-Han Uh, Hyung-Guel Kim, Sang-Woo Kim, Seung-Kyu Lee, Bo-Young An, Won-Sang Park, Jae-Hyun Kim, Hae-Young Yun, Jae-Young Lee, Poundaleva Irina, Sung-Eun Cha, Young-Joo Chang, Jae-Ik Lim, Ki-Hun Jeong
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Patent number: 7659541Abstract: A liquid crystal display, in accordance with the present invention, includes a first substrate having a thin film transistor and a first electrode formed thereon. The first electrode is electrically connected to the thin film transistor. A first insulating layer is formed on the first substrate including the thin film transistor and the first electrode and a window is formed in the first insulating layer, the window exposing a predetermined region of the first electrode. A second electrode is provided on the first insulating layer and electrically connected to the first electrode. A second substrate includes a third electrode formed thereon. A first gap is formed between a surface of the third electrode and a surface of the predetermined region of the first electrode, and a second gap is formed between the surface of the third electrode and a surface of the second electrode. A liquid crystal layer is interposed between the first gap and the second gap.Type: GrantFiled: April 25, 2007Date of Patent: February 9, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Kyu Jang, Jae-Hyun Kim, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Young-Nam Yun
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Patent number: 7646438Abstract: A micro lens panel unit for 3D display device includes: a first panel; a resin lens formed on the first panel and having a convex shape; a second panel facing the first panel; and a liquid crystal interposed between the first and second panels.Type: GrantFiled: December 8, 2005Date of Patent: January 12, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Sang Park, Kee-Han Uh, Hae-Young Yun, Jae-Hyun Kim, Jae-Young Lee, Young-Joo Chang, Poundaleva Irina, Sung-Eun Cha, Seung-Kyu Lee, Jae-Ik Lim, Sang-Woo Kim
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Patent number: 7633473Abstract: An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.Type: GrantFiled: December 14, 2005Date of Patent: December 15, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kee-Han Uh, Hyung-Guel Kim, Sang-Woo Kim, Seung-Kyu Lee, Bo-Young An, Won-Sang Park, Jae-Hyun Kim, Hae-Young Yun, Jae-Young Lee, Poundaleva Irina, Sung-Eun Cha, Young-Joo Chang, Jae-Ik Lim, Ki-Hun Jeong
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Patent number: 7622147Abstract: In a liquid crystal display apparatus, a lower substrate has a transmissive electrode formed in a transmissive area of a first substrate and a reflective electrode formed in a reflective area of the first substrate. An upper substrate has a second substrate, a first insulating layer formed on the second substrate corresponding to the transmissive area, a common electrode formed on the first insulating layer and the second substrate corresponding to the reflective area, and a second insulating layer formed on the common electrode corresponding to the reflective area. Accordingly, the liquid crystal display apparatus may have a uniform cell gap, thereby improving a reflectance and a transmittance thereof.Type: GrantFiled: May 27, 2008Date of Patent: November 24, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Won-Sang Park, Kee-Han Uh, Yong-Kyu Jang, Sang-Woo Park, Sang-Woo Kim, Sung-Eun Cha, Jae-Young Lee, Jae-Hyun Kim
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Patent number: 7609344Abstract: The present invention provides a transflective liquid crystal display having reflection regions and transmission regions, including a first substrate, a light transmissive layer formed on the first substrate and having recessed portions corresponding to the transmission regions, color filters formed on the light transmissive layer and having a position-dependent thickness due to the recessed portions of the light transmissive layer, transparent electrodes formed on the first substrate, reflective electrodes disposed on the reflection regions and interposed between the light transmissive layer and the color filters, a second substrate, a common electrode formed on the second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate.Type: GrantFiled: December 12, 2005Date of Patent: October 27, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Joo Chang, Jae-Ik Lim, Jae-Young Lee, Seung-Kyu Lee, Sung-Eun Cha, Poundaleva Irina, Sang-Woo Kim, Jae-Hyun Kim, Hae-Young Yun, Won-Sang Park, Kee-Han Uh
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Publication number: 20090186436Abstract: An array substrate includes a plate, a switching element, an insulating layer and a pixel electrode. The plate includes a pixel region, and the switching element is disposed on the plate. The insulating layer is disposed on the plate to include an opening for a multi-domain disposed in the pixel region and a contact hole. An electrode of the switching element is partially exposed through the contact hole. The pixel electrode is disposed on the insulating layer corresponding to the pixel region, an inner surface of the opening for the multi-domain and an inner surface of the contact hole so that the pixel electrode is electrically connected to the electrode of the switching element. Therefore, the viewing angle and the image display quality of the LCD apparatus are improved, and a manufacturing process is simplified.Type: ApplicationFiled: March 31, 2009Publication date: July 23, 2009Inventors: Jae-Hyun KIM, Sung-Eun CHA, Sang-Woo KIM, Won-Sang PARK, Jae-Young LEE, Jae-Ik LIM